Abstract

We have performed magnetization and magnetoresistancemeasurements on thin films in order to understand the role of in-plane uniaxial magnetic anisotropy in the magnetoresistance.Transportmeasurements with current flowing along the magnetically easy [001] and magnetically hard directions exhibit a linear dependence of magnetoresistance on field at high fields due to bulk colossal magnetoresistance. The low field behavior depends not only on the angle of the magnetization with the current but also the direction of the current in the crystal.